⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-102971, with some changes.

Arnica arachnoidea Rydb. is a synonym of Arnica mollis Hook.

This name is a synonym of Arnica mollis Hook..

The record derives from TICA which reports it as a synonym (record BBB053D7-022B-4C30-9654-A04773E1AFC8) with original publication details: N. Amer. Fl. 34 353 1927.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:19877-2.